25723971

素因数分解:

$3^2\times 7^3\times {\mathrm{13}}^1\times {\mathrm{641}}^1$

素因数の和:681

約数の個数: 48

約数和(自身を含む): 46737600

約数和(自身を除く): 21013629

約数列:

[1, 3, 7, 9, 13, 21, 39, 49, 63, 91, 117, 147, 273, 343, 441, 637, 641, 819, 1029, 1911, 1923, 3087, 4459, 4487, 5733, 5769, 8333, 13377, 13461, 24999, 31409, 40131, 40383, 58331, 74997, 94227, 174993, 219863, 282681, 408317, 524979, 659589, 1224951, 1978767, 2858219, 3674853, 8574657, 25723971]

約数ペア:

[(1, 25723971), (3, 8574657), (7, 3674853), (9, 2858219), (13, 1978767), (21, 1224951), (39, 659589), (49, 524979), (63, 408317), (91, 282681), (117, 219863), (147, 174993), (273, 94227), (343, 74997), (441, 58331), (637, 40383), (641, 40131), (819, 31409), (1029, 24999), (1911, 13461), (1923, 13377), (3087, 8333), (4459, 5769), (4487, 5733)]